Perhaps you should try some spelling variations:
asia environmentally » _ environmentally, sea environmental, aqaba environmental
development series » development services, development agencies, development strategies
technical experts » technical expertise
sustainable urban » sustainable use
bank technical » a technical

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: world bank technical experts. europe and central asia environmentally and socially sustainable urban ((development series) OR (development africa)).~.
• If you are trying to use Boolean operators, they must be ALL CAPS: world bank technical experts. europe AND central asia environmentally AND socially sustainable urban ((development series) OR (development africa))..
• The words AND, OR and NOT may confuse the search; try adding quotes: "world bank technical experts. europe and central asia environmentally and socially sustainable urban ((development series) OR (development africa)).".
• Adding a wildcard symbol may retrieve word variants: world bank technical experts. europe and central asia environmentally and socially sustainable urban ((development series) OR (development africa)).*.